“We approached this season with the inspiration of jazz on a summer’s day,” said Shettel, who watched a 1958 documentary about the Newport Jazz Festival as part of his process. “What was striking was how modern the casual sort of dresses looked in 1958 with the juxtaposition of the jazz-world glamour.”

The way to find the perfect dress, he said, is to try it on and see how it moves, because movement brings the dress alive.